I use them when I am enjoying a nice twisty road where I live. You can hold it in the gear you want and manipulate the thottle to be able to corner and come out of a coorner much better. Makes for great fun. This is my second GP with them and I have not had any problems. I do wish my heads up display had the rpms showing, because like the other poster said you need to know when to shift. Day to day driving doesn't do much since it really needs another gear.